How does water come from on Earth?

How is water formed on Earth?

There have been two theories, the first of which is that the seawater comes from the Glacial Comets, which is based on data provided by satellites. A large number of glacial comets enter the Earth's atmosphere

What is the best water on earth?

The water on the earth is liquefied by gases, and at the time of the birth of the earth, the surface was wrapped in various atmospheres, and the ocean was gradually liquefied under the action of sunlight and various conditions.

The water on Earth was brought about by the devastating catastrophe of the time, when it rained for a long time. Let a lot of water go into the interior of the earth, and then it will still come out. In addition, the impact of some asteroids has also made the earth have a lot of water, because asteroids also have a lot of water.

In fact, there are 13 billion tons of water on the earth, which scientists have discovered, far more than other planets in the solar system, because through the collision of various materials, the gravitational condensation of all things is gradually formed.

I think that the water on the earth is the original part of the earth itself, and it has evolved over a long period of time, like many organisms on the earth.

If you want to say that the water on the earth comes from the **, it is very likely that the earth itself has water. Why? If we take the human body as an example, most of the human body is composed of water, so the earth will definitely carry its own water.

So much water on the surface of the earth comes from

In the past 100 years, scientists have carried out and demonstrated the water on the earth from the beginning, and the more representative ones are the endogenous theory (the earth itself) and the exogenous theory (the outer part of the earth). Let's take a look at the arguments of scientists.

Endogenous theory means that the water on Earth comes from the Earth itself, and scientists believe that water is included in the material that formed the Earth 4.6 billion years ago. In the beginning, there were many volcanoes on the earth, and with the eruption of volcanoes, magma carried water vapor to all parts of the earth, and after the magma cooled, the water vapor condensed into rainwater and fell to the earth's surface, and since then there has been a water cycle, forming seas, rivers, lakes, etc.

2. Exogenous theory.

Exogenous said that some scientists believe that the water on the earth comes from the universe, and that the asteroids containing water in the universe will bring water to the earth after hitting the earth, especially comets have more water content, and after hitting the earth, they bring a lot of water, and these asteroids fall to the earth and become meteorites.

There is still a certain amount of science in the endogenous and exogenous theories, but there are also some shortcomings.

The author believes that the earth is a complex planet, and the ** of water is not necessarily single, but is formed by a variety of factors.

Scientists have two main views on the earth's water**: one is the "endogenous theory", that is, there is already liquid water inside the earth, and later at the end of the Plutozoic, the water inside the earth poured into the surface and became a primordial ocean; The second is the "exogenous theory", that is, the water on the earth is not produced by itself, but comes from space, and meteorites, comets, etc. send water to the earth1.

Scientists have two main views on the earth's water**: one is the "endogenous theory", that is, there is already liquid water inside the earth, and later at the end of the Plutozoic, the water inside the earth poured into the surface and became a primordial ocean; The second is the "exogenous theory", that is, the water on the earth does not produce its own respect, but comes from space, and meteorites, comets, etc. bring water to the earth.1 There is no definite evidence to prove which view is more correct.

However, scientists have found traces of water on many icy planets in the solar system, which means that water is not exclusive to Earth, but is widespread in the solar system1.

2 "Water is the source of life. "It is because of the water on the earth that all living beings live. In the solar system, the Earth is a celestial body with liquid water.

Water occupies 77 percent of the Earth's surface area (for which it has been proposed that the Earth should be renamed "Water Ball"), totaling 14.5 billion tonnes. This does not include structural water and crystalline water contained in minerals, nor does it include water in living organisms (2 3 of living organisms are composed of water). Scientists have two main views on the Earth's water**:

The first is the "endogenous theory", that is, there is already liquid water inside the earth, and later at the end of the Plutozoic, the water inside the earth poured into the surface and became a primordial ocean; The second is the "exogenous theory", that is, the water on the earth does not produce itself but comes from space, and meteorites, comets, etc. send water to the earth.1

The earth itself: like other celestial bodies, the earth does not exist out of thin air, but is formed by the collision and fusion of many small stars, at the beginning the earth was only an asteroid, but there are constantly small celestial bodies that collide and merge with it, making its volume and mass larger and larger, at that time, there is actually water on the earth.

Outer space: With the development of science, people have discovered that outer space also sends water to the earth from time to time. Part of this water comes from small meteorites, and part of the mountain air comes from the solar wind.

In 1987, when scientists analyzed satellite imagery, they found that there were many dark spots on the earth's surface. Scientists believe that these dark spots are caused by small ice hockey balls hitting the atmosphere. Tens of millions of small ice balls hit the Earth's atmosphere every round of liquid day, and the water they bring will enter the Earth's atmosphere and oceans, replenishing the Earth's water supply.

Water production and **

Hydrogen atoms and oxygen atoms combine to form water, and as we all know, the earth is a planet in the solar system, and hydrogen and oxygen atoms are important components of the formation of the solar system. A large number of oxygen and hydrogen atoms collided to form water molecules, forming nebulae in the solar system, and the earth was formed by the dust and nebulae in the solar system.

The retention of water molecules, when the earth was just formed, the temperature of the earth's surface was extremely high, so that the newly formed water molecules could not exist on the earth in liquid form. Therefore, some of the water molecules formed by the initial combination of hydrogen and oxygen are combined with minerals to form aqueous crystals, and these aqueous crystals are dehydrated to obtain water. The other part of the water evaporates into water vapor and remains in the atmosphere, where it returns to the surface in the form of rainfall.

There is no accepted answer to this question in the scientific community, but there are two main theories, namely "endogenous theory" and "exogenous theory".

The first is the "endogenous theory", which geologists believe believe that water has been one of the basic components of the earth since the birth of the earth. Hydrogen and oxygen are the basic building blocks of the earth, and these two elements form water through chemical reactions under certain conditions in the process of formation.

The second theory is the "exogenous theory", in which astronomers believe that the vast majority of our Earth's water comes from outer space. In the early days of the earth's existence, meteorites can be said to be frequent visitors to the earth, and scientists believe that these meteorites generally contain a large amount of water, and over time, a large amount of liquid water is formed.

The surface of the earth that has just formed may contain a small amount of water brought by the comet nucleus, which is the solid water in the comet nucleus. They disintegrate as they reach an altitude of 1,000 kilometers above Earth and quickly evaporate into clouds of water vapor in the air. But the amount of water in the air is too small to form so much earth water.

The formation of the hydrosphere and atmosphere on Earth is mainly related to the escape of water vapor and gaseous ions from the Earth's interior during radionuclear combustion. In the early days of the Earth's "birth", when the Earth's interior had not yet been burned by radioactive nuclear fuel, there was no large amount of water and a dense atmosphere on the Earth's surface. Water and atmosphere are mainly "squeezed" out of the Earth's interior when the hot areas of the Earth's interior expand, and are gradually accumulated in the Earth's crust and surface during the degassing of the Earth's mantle and crust.

In this way, the water of the earth is the baby in the "belly" of the earth, which is born. Conceived in October and delivered in one day. The substances that form the "fetus" are oxygen and hydrogen from the primordial nebula.

They produce water vapor in nuclear reactions. Therefore, the water of the earth is mainly the "offspring" of the degassing of the mantle and crust.

A large number of comets break into Earth every year, and about 4,000 comets each have a lot of water on them, which is not surprising that the Earth is 4.6 billion years old.

What is the best water on earth?

How is water formed on Earth?

Where does the water on Earth come from? On this issue, scientists have made two representative statements: "exogenous theory" and "autologous theory". "Exogenous Theory" argues:

Water comes from outside the Earth, i.e. not from the Earth itself, but from comets that collide with the Earth and meteorites that fall to the Earth. Because the composition of the meteorite itself contains a certain amount of water, it is generally believed that some are as high as 10% or more, and the water content of carbonaceous chondrite meteorites is even more.

There is also a saying: "The solar wind reaches the upper layer of the earth's atmosphere, bringing a large number of atomic nuclei such as hydrogen, carbon, and oxygen, and these nuclei combine with electrons in the atmosphere to form hydrogen atoms, carbon atoms, oxygen atoms, etc." It is then transformed into water molecules through different chemical reactions. ”

The "endogenous theory" holds that since the birth of the earth, its own rock formations have brought a large amount of water. Under certain conditions and actions, the abundant water resources in the rock formation will be released.

At the same time, the Earth's magma eruptions also bring a large amount of water, and as a result, the water on the Earth's surface continues to increase. These two claims have been at odds with each other in academic circles and remain inconclusive.

But recently scientists have made unprecedented discoveries about where the water comes from and have moved their research into a nebula called Orion. Moreover, the birth time of this constellation is close to the birth time of the earth, and on this mysterious and inconspicuous nebula, there used to be a large number of hydrogen clouds, where hydrogen atoms and oxygen atoms combine to produce water. It turns out that the water on Earth comes from a constellation.

So scientists named it "Orion Analysis Cloud", and at the same time, it can also be seen as a veritable "water source".

Where does the water on Earth come from? Although the academic community has not yet reached a conclusion, but the road of science is endless, the author believes that in the continuous solution to the problem and the emergence of new problems, we through continuous research and discovery, there must be an answer after all.